UWB Channel Measurements and Results for Wireless Personal Area Networks Applications

Irahhauten, Z.; Dacuña, Javier; Janssen, G. C. A. M.; Nikookar, H.

doi:10.1109/ecwt.2005.1617689

Cited by 23 publications

(17 citation statements)

References 5 publications

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“…Summations B and C represent the power contribution from the other rays in the first cluster and the rays in the other clusters, respectively, whose angular spread covers all angles as shown in (4).…”

Section: The Apsd Of Uwb Cirmentioning

confidence: 99%

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A packet-level model for UWB channel with people shadowing process based on angular spectrum analysis

Zhang

Cai

2009

IEEE Trans. Wireless Commun.

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Abstract-Ultra-wideband (UWB) wireless communication technologies have been proposed to support high data rate multimedia services in office or residential environments. Due to the low transmission power of UWB, the shadowing effect by moving people can considerably reduce the received signal quality and thus significantly degrade the quality of service (QoS) of on-going transmissions. An open issue is to build a simple model which captures the temporal variation of UWB channels and the packet error rate (PER) due to the people shadowing effect (PSE), which will be a useful tool for upper layer protocol performance analysis and simulation. This paper presents an analytical study of the PSE and the temporal variation of UWB channels induced by the motion of a person. First, we derive the angular power spectral density (APSD) of the indoor UWB channel impulse response (CIR), and the PSE in terms of signal power attenuation. Second, based on a two-dimensional random walk mobility model, the PER variation due to people shadowing is modeled as a finite-state Markov chain (FSMC). The investigation of APSD provides important insights on the spatial propagation characteristics of UWB signals. The proposed packet-level channel model can be conveniently incorporated into analytical frameworks and simulation tools for evaluating upperlayer protocols of UWB networks.Index Terms-Channel model, UWB, angular power spectral density, shadowing effect.

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Section: The Apsd Of Uwb Cirmentioning

confidence: 99%

“…Reference [2] and [3] illustrated the received power attenuation by one or several persons in a corridor or a square conference room, respectively. In [4] and [5], the PSE was measured when a person moved along a line perpendicular to the LOS and fully or partially blocked the LOS. In [6], Ghaddar et.…”

Section: Introductionmentioning

confidence: 99%

A packet-level model for UWB channel with people shadowing process based on angular spectrum analysis

Zhang

Cai

2009

IEEE Trans. Wireless Commun.

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“…In [4], UWB channel measurements for a Body Area Network (BAN) are presented where transmit and receive antenna are placed directly on the body and only the 3-6 GHz bandwidth was measured. Reference [6] shows the results of a set of time domain UWB measurements for very short distances. In spite of plenty of UWB measurement efforts for WPAN, the near-field effects on the link budget have not been analyzed.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Modeling of Near-Field Effects on the Link Budget for UWB-WPAN Channels

Irahhauten

Dacuña

Janssen

et al. 2008

2008 IEEE International Conference on Communications

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Abstract-Wireless personal area networks applications may benefit from the use of ultra-wideband (UWB) technology. In these applications transmit and receive antennas are very close to each other and the far-field condition assumed in most of the link budget models may not be satisfied. Under nearfield conditions, variations in the link budget and pulse shape compared to the far-field can be observed. In this work, a new UWB link budget model for very short distances is proposed and validated with measurements using different types of antennas. The measurements have been performed in the time domain by exciting the antenna with very short pulse of 35 ps width covering a large frequency band. The proposed model, which includes frequency, antenna size and orientation as parameters, shows a good agreement with the simulations and the measurements.

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“…In [4], UWB channel measurements for a body area network (BAN) are presented where transmit and receive antenna are placed directly on the body, but only the 3-6 GHz band was measured. Reference [6] shows the results of a set of time domain UWB measurements for very short distances. In spite of plenty of UWB measurement efforts for WPAN, the analysis of near-field effects and the link budget model has not received much attention.…”

mentioning

confidence: 99%

Link Budget Analysis and Modeling of Short-Range UWB Channels

Irahhauten

Dacuña

Janssen

et al. 2008

IEEE Trans. Antennas Propagat.

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Abstract-Ultrawideband (UWB) technology is an attractive alternative for short-range applications, e.g., wireless personal area networks. In these applications, transmit and receive antennas are very close to each other and the far-field condition assumed in most of the link budget models may not be satisfied. Under near-field conditions, variations in the link budget and pulse shape compared to the far-field can be observed. In this work, a novel line-of-sight UWB link budget model for very short distances is proposed and validated with measurements using different types of antennas. The proposed model, which takes into account all main near-field effects (i.e., phase error, antenna mismatch and reradiation between antennas) and includes frequency, antenna size and orientation as parameters, shows a good agreement with the simulations and the measurements. This model has also been applied to dispersive antennas (e.g., notch-antennas), and can be used in the design and analysis of short-range UWB communication systems.Index Terms-Link budget, near-field measurements, ultrawideband (UWB) antenna, UWB propagation channel.

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UWB Channel Measurements and Results for Wireless Personal Area Networks Applications

Cited by 23 publications

References 5 publications

A packet-level model for UWB channel with people shadowing process based on angular spectrum analysis

A packet-level model for UWB channel with people shadowing process based on angular spectrum analysis

Analysis and Modeling of Near-Field Effects on the Link Budget for UWB-WPAN Channels

Link Budget Analysis and Modeling of Short-Range UWB Channels

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